US11754099B2ActiveUtilityA1

Method for repairing a piston-cylinder unit within a working machine

Assignee: LIEBHERR COMPONENTS KIRCHDORF GMBHPriority: Sep 4, 2018Filed: Oct 12, 2022Granted: Sep 12, 2023
Est. expirySep 4, 2038(~12.1 yrs left)· nominal 20-yr term from priority
F15B 15/1457F15B 15/1452F15B 15/1447F15B 15/1438F15B 21/003F15B 2215/30F15B 15/1428
60
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Cited by
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References
3
Claims

Abstract

Disclosed is a method for repairing a piston-cylinder unit within a working machine or within an attachment, wherein a connection of the piston rod with the machine or implement structure is released and the piston rod, the piston and at least one bearing head is jointly removed from the cylinder housing as an assembly and replaced by a premounted substitute assembly consisting of piston rod, piston and at least one bearing head.

Claims

exact text as granted — not AI-modified
The invention claimed is: 
     
       1. An installation kit comprising a pre-mounted substitute assembly comprising a piston rod with a bearing head fitted onto the piston rod and a pre-mounted piston for repair of a working machine or an attachment;
 wherein the pre-mounted substitute assembly consists essentially of the piston, the bearing head, and the piston rod, the kit configured such that a cylinder of a piston-cylinder unit remains mounted on the working machine during the repair. 
 
     
     
       2. The kit of  claim 1 , wherein a screw connection connects the bearing head with a housing of the cylinder. 
     
     
       3. The kit of  claim 2 , wherein the piston and/or the bearing head of the substitute assembly include a set of sealings.

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